[BrooklynBoy]

lm with ruppy, i am running cobra swepts with no baffles and no fuel controller and it seems to run ok, but i am not a motorcycle mechanic. not sure what kind of damage its doing, but the cobras are really loud. that was one of my concerns, i wanted something that looked really cool and loud. Cobra has both covered. Good Luck!!!!

You're not really doing 'damage' running without a fuel controller, but you will run leaner... If you do this for TOO LONG, then you take a chance of burning a hole in the top of your pistons.

But... you would really need to abuse the bike before that happens...

and YES, I am a motorcycle mechanic...

 

[BrooklynBoy]

You should use a fuel controller, that is always the best way to go...